node_modules/three/src/lights/AmbientLight.d.ts

import { Color } from './../math/Color';
import { Light } from './Light';

/**
 * This light's color gets applied to all the objects in the scene globally.
 *
 * # example
 *     var light = new THREE.AmbientLight( 0x404040 ); // soft white light
 *     scene.add( light );
 *
 * @source https://github.com/mrdoob/three.js/blob/master/src/lights/AmbientLight.js
 */
export class AmbientLight extends Light {
  /**
   * This creates a Ambientlight with a color.
   * @param color Numeric value of the RGB component of the color or a Color instance.
   */
  constructor(color?: Color | string | number, intensity?: number);

  castShadow: boolean;
}